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Alibaba Group Interview Questions and Answers

Updated 21 Jul 2024

Alibaba Group Interview Experiences

Popular Designations

7 interviews found

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. About qualification
  • Q2. About sales experience

Interview Preparation Tips

Interview preparation tips for other job seekers - Good atmosphere of JOB

B2B Sales Manager Interview Questions asked at other Companies

Q1. Are you comfortable with taget oriented job??
View answer (1)
Interview experience
5
Excellent
Difficulty level
-
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in Jan 2024. There were 3 interview rounds.

Round 1 - Coding Test 

I'm referred so I don't need to do the coding test

Round 2 - HR 

(2 Questions)

  • Q1. Went through the cv, talk about the projects
  • Q2. Weakness and strongness, bq questions
Round 3 - One-on-one 

(1 Question)

  • Q1. Logistic regression questions, svm, etc

Research Intern Interview Questions asked at other Companies

Q1. Minimum no of steps needed to find the value of a nth order polynomial by making calls to a function that can compute the value of a 1st order polynomial( ax+b ). What is the answer if we can do parallel processing which allows us to call t... read more
View answer (1)
Alibaba Group Interview Questions and Answers for Freshers
illustration image
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. What's the diff bettween spark and hadoop mapreduce
  • Ans. 

    Spark is faster than Hadoop MapReduce due to in-memory processing and supports multiple types of workloads.

    • Spark performs in-memory processing, while Hadoop MapReduce writes to disk after each task.

    • Spark supports multiple types of workloads like batch processing, interactive queries, streaming data, and machine learning, while Hadoop MapReduce is mainly for batch processing.

    • Spark provides higher-level APIs in Java, Sca...

  • Answered by AI
  • Q2. U can found it in net

Skills evaluated in this interview

Big Data Engineer Interview Questions asked at other Companies

Q1. Difference between partitioning and bucketing. Types of joins in spark Optimization Techniques in spark Broadcast variable and broadcast join Difference between ORC and Parquet Difference between RDD and Dataframe Architecture of our projec... read more
View answer (1)

Data Analyst Interview Questions & Answers

user image Galahad Wong

posted on 7 Mar 2024

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in Feb 2024. There was 1 interview round.

Round 1 - Coding Test 

Some coding question about optimization algorthim

Interview Preparation Tips

Interview preparation tips for other job seekers - Leecode should be consider

Data Analyst Interview Questions asked at other Companies

Q1. Suppose there is a room in the office and X people enter room throughout the day, Y people leave throughout the day [continuously people are entering the room, some are staying there, and rest are going out] .. so tell me the code to calcul... read more
View answer (11)

Alibaba Group interview questions for popular designations

 Product Manager

 (1)

 Data Analyst

 (1)

 Regional Sales Manager

 (1)

 B2B Sales Manager

 (1)

 Business Development Officer

 (1)

 Research Intern

 (1)

 Big Data Engineer

 (1)

Interview experience
1
Bad
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in Oct 2023. There was 1 interview round.

Round 1 - One-on-one 

(1 Question)

  • Q1. Tell me why we should hire you

Interview Preparation Tips

Interview preparation tips for other job seekers - run away!!! never seen hr like this anywhere

Product Manager Interview Questions asked at other Companies

Q1. You see the number of people cancelling the order increasing. Cancel window 24 hours. What would you do?
View answer (26)
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Group Discussion 

I was surprised to see that all applications were gathered at a huge meeting room. We were handed out 4 pages of a case study and we were told to create a business plan for our responsible market.

Business Development Officer Interview Questions asked at other Companies

Q1. How to recurring a team nd busnines how to achive your target nd goal if agent not giving business so what is your next staterdgy nd how to complite your target in every month if costumer not meeting your in front so what is your statergy t... read more
View answer (2)

I applied via Naukri.com

Round 1 - One-on-one 

(1 Question)

  • Q1. In coivid how do you manager sales number last year in previous organisation

Interview Preparation Tips

Interview preparation tips for other job seekers - We have increased the team size by 25 percentage

Regional Sales Manager Interview Questions asked at other Companies

Q1. If there are 1500 shops that need to be visited twice a month, how many executives you need?
View answer (14)

Interview questions from similar companies

Interview Questionnaire 

19 Questions

  • Q1. How was your day?-Tell me about yourself
  • Ans. 

    My day was productive and fulfilling. As for myself, I am a driven and detail-oriented individual with a passion for problem-solving.

    • I tackled several challenging tasks at work and made significant progress on each of them.

    • I also took some time to exercise and clear my mind, which helped me stay focused throughout the day.

    • As for myself, I have a background in engineering and enjoy using my analytical skills to find cre...

  • Answered by AI
  • Q2. How to optimize the code that you had written in aptitude test - It was a discussion, he helped me in solving the problem
  • Ans. 

    Optimizing code involves identifying and removing bottlenecks to improve performance.

    • Identify the parts of the code that are taking the most time to execute

    • Use efficient algorithms and data structures

    • Minimize the number of function calls and loops

    • Avoid unnecessary calculations or operations

    • Use caching or memoization to avoid repeating calculations

    • Profile the code to measure performance improvements

  • Answered by AI
  • Q3. Now write an optimized version of that code
  • Ans. 

    Optimized version of given code

    • Use efficient data structures and algorithms

    • Avoid unnecessary loops and conditions

    • Minimize function calls and variable assignments

  • Answered by AI
  • Q4. How was your day?-Tell me about yourself?
  • Ans. 

    My day was productive and fulfilling. As for myself, I am a driven and detail-oriented individual with a passion for problem-solving.

    • I tackled several challenging tasks at work and made significant progress on each of them.

    • I also took some time to exercise and clear my mind, which helped me stay focused throughout the day.

    • As for myself, I have a background in engineering and enjoy applying my analytical skills to a var...

  • Answered by AI
  • Q5. Which language do you prefer to code in? "Have you read The C Programming Language book by Dennis Retchie?" Which technical book have you read recently?.-So you like C, have you ever thought of bringing up...
  • Ans. 

    Yes, I prefer coding in C and have read The C Programming Language book. I have also explored the concept of Inheritance in C.

    • I find C to be a powerful and efficient language for system programming.

    • Yes, I have read The C Programming Language book by Dennis Retchie and found it to be a great resource.

    • Recently, I have been exploring the concept of Inheritance in C through various online resources and tutorials.

    • While C do...

  • Answered by AI
  • Q6. What is the reason behind inventing the concept of inheritance? Write a program and explain
  • Ans. 

    Inheritance allows a class to inherit properties and methods from another class.

    • Inheritance promotes code reusability and saves time and effort in programming.

    • It allows for the creation of a hierarchy of classes with shared characteristics.

    • For example, a class Animal can be inherited by classes such as Dog, Cat, and Bird, which share common properties and methods.

    • Inheritance can be implemented using the 'extends' keywo

  • Answered by AI
  • Q7. What is Liskov substitution principle?
  • Ans. 

    Liskov substitution principle is a principle in object-oriented programming that states that objects of a superclass should be able to be replaced with objects of its subclasses without affecting the correctness of the program.

    • Subtypes must be substitutable for their base types

    • Derived classes must not change the behavior of the base class

    • Violating the principle can lead to unexpected behavior and errors

    • Example: A squar...

  • Answered by AI
  • Q8. Explain OOPs concepts with a program for each
  • Ans. 

    Explanation of OOPs concepts with programs

    • Encapsulation: Wrapping data and functions into a single unit. Example: Class in Java

    • Abstraction: Hiding implementation details and showing only necessary information. Example: Abstract class in C#

    • Inheritance: Acquiring properties and behavior of a parent class. Example: Child class extending parent class in Python

    • Polymorphism: Ability of an object to take many forms. Example:

  • Answered by AI
  • Q9. Write a code for dynamic polymorphism
  • Ans. 

    Dynamic polymorphism is achieved through virtual functions and inheritance in object-oriented programming.

    • Create a base class with virtual functions

    • Create derived classes that override the virtual functions

    • Use pointers or references of the base class to call the virtual functions

    • The appropriate derived class function will be called based on the object being pointed to or referred to

  • Answered by AI
  • Q10. What is the drawback of global variables?
  • Ans. 

    Global variables can lead to unexpected changes and make debugging difficult.

    • Global variables can be accessed and modified from any part of the code, making it difficult to track changes.

    • They can cause naming conflicts if multiple variables with the same name are used in different parts of the code.

    • Using global variables can make it harder to test and debug code, as it can be difficult to isolate the cause of errors.

    • Th...

  • Answered by AI
  • Q11. Why using 'goto' is a bad programming practice?
  • Ans. 

    Using 'goto' can make code hard to read, maintain and debug.

    • Goto statements can create spaghetti code that is difficult to follow.

    • It can make it harder to understand the flow of the program.

    • It can also make debugging more difficult.

    • There are usually better alternatives to using goto, such as using loops or functions.

    • Some programming languages, such as Java and Python, do not even have a goto statement.

    • Using goto can al...

  • Answered by AI
  • Q12. Which is your favourite subject? Why? Name a book for that subject
  • Ans. 

    My favorite subject is history because it helps me understand the present and learn from the past.

    • I enjoy learning about different cultures and how they have evolved over time

    • I find it fascinating to study the causes and effects of major historical events

    • One of my favorite books on history is 'Guns, Germs, and Steel' by Jared Diamond

  • Answered by AI
  • Q13. Bring modularity in the code that you had written in aptitude test
  • Q14. Told me to make changes as per his wishes in that code-What is DRY in software engineering?
  • Q15. Gave a puzzle (find the heaviest ball amongst 8 balls in an optimized way). Tell the logic and write code for it.-write Create, Update, Delete, Insert, Select, Join SQL queries for a given problem
  • Q16. Asked me one sentence questions about the technologies that I had mentioned in resume... What is..... HTML, CSS, JQuery, JSP?
  • Q17. What are implicit objects in JSP?
  • Ans. 

    Implicit objects are pre-defined objects in JSP that can be accessed without being explicitly declared.

    • Implicit objects are created by the JSP container during the translation phase.

    • They can be accessed using predefined names such as request, response, session, application, out, pageContext, config, and exception.

    • For example, the request object can be used to retrieve parameters from a form or URL.

    • The session object ca...

  • Answered by AI
  • Q18. Name a web server and an application server
  • Ans. 

    Apache is a popular web server and Tomcat is a widely used application server.

    • Apache is an open-source web server that supports multiple operating systems and is known for its stability and security.

    • Tomcat is a Java-based application server that is used to deploy Java web applications and supports servlets and JSPs.

    • Other popular web servers include Nginx and Microsoft IIS.

    • Other popular application servers include JBoss...

  • Answered by AI
  • Q19. How to deploy web application on apache tomcat?-What is Collections in Java?
  • Ans. 

    To deploy a web application on Apache Tomcat, the application needs to be packaged as a WAR file and then deployed to the Tomcat server.

    • Create a WAR file of the web application

    • Copy the WAR file to the Tomcat webapps directory

    • Start the Tomcat server

    • Access the web application using the URL http://localhost:8080/

    • Collections in Java are classes that implement collections of objects, such as lists, sets, and

  • Answered by AI

Interview Preparation Tips

College Name: IIT MADRAS

Skills evaluated in this interview

I applied via Referral

Interview Questionnaire 

13 Questions

  • Q1. I was asked to derive the time complexity of my code from the written test. It was to print the elements of a binary tree in spiral order
  • Q2. Program to swap two pointers
  • Ans. 

    A program to swap two pointers.

    • Declare two pointers of the same data type

    • Assign the first pointer to a temporary variable

    • Assign the second pointer to the first pointer

    • Assign the temporary variable to the second pointer

  • Answered by AI
  • Q3. Program to determine whether a given binary tree is binary search tree. I was asked to solve this in two different ways
  • Q4. Two DBMS queries involving aggregate functions
  • Q5. Program to implement Dijkstra’s algorithm
  • Ans. 

    Dijkstra's algorithm finds shortest path between nodes in a graph

    • Create a graph with nodes and edges

    • Initialize distances from source node to all other nodes as infinity

    • Set distance from source node to itself as 0

    • Create a set of unvisited nodes

    • While unvisited set is not empty, select node with minimum distance

    • For each neighbor of selected node, calculate distance from source node

    • If calculated distance is less than curre...

  • Answered by AI
  • Q6. Program to implement Floyd­Warshall’s agorithm
  • Ans. 

    Floyd-Warshall's algorithm is used to find the shortest path between all pairs of vertices in a weighted graph.

    • Create a 2D array to store the distances between all pairs of vertices.

    • Initialize the array with the weights of the edges in the graph.

    • Use nested loops to iterate over all pairs of vertices and update the distances if a shorter path is found through a third vertex.

    • The final array will contain the shortest dist

  • Answered by AI
  • Q7. Program to print the elements of a matrix in spiral order recursively
  • Ans. 

    Program to print matrix elements in spiral order recursively

    • Create a recursive function to print the elements in spiral order

    • Define the boundaries of the matrix and traverse the matrix in spiral order

    • Call the recursive function to print the elements in spiral order

    • Handle edge cases such as empty matrix or matrix with only one row/column

  • Answered by AI
  • Q8. Given an unsorted array of numbers, find two numbers which add up to the given sum in O(n)
  • Ans. 

    Find two numbers in an unsorted array that add up to a given sum in O(n)

    • Use a hash table to store the difference between the sum and each element in the array

    • Iterate through the array and check if the current element is in the hash table

    • If it is, return the current element and the corresponding difference

    • If not, add the current element to the hash table

  • Answered by AI
  • Q9. Explain indexing in DBMS
  • Ans. 

    Indexing is a technique used in DBMS to improve the performance of queries.

    • Indexing creates a separate data structure that allows faster retrieval of data.

    • It works by creating a pointer to the location of data in the table.

    • Indexes can be created on one or more columns of a table.

    • Types of indexing include B-tree, hash, and bitmap indexing.

    • Indexes can also be clustered or non-clustered.

    • Clustered indexes determine the phy...

  • Answered by AI
  • Q10. Explain B and B+ trees
  • Ans. 

    B and B+ trees are data structures used for efficient searching and sorting of large datasets.

    • B trees are balanced trees used for disk-based storage systems.

    • B+ trees are similar to B trees but have all data stored in the leaf nodes for faster searching.

    • B trees have a variable number of keys per node, while B+ trees have a fixed number.

    • B trees have a higher fanout than B+ trees, making them more efficient for smaller da...

  • Answered by AI
  • Q11. Given a binary tree, write a program to determine whether there exists a root to leaf path having the given sum
  • Q12. Program to find the lowest common ancestor of two nodes in binary search tree as well as binary tree. I was also asked to give the brute force approach for the same
  • Ans. 

    Program to find lowest common ancestor of two nodes in binary search tree and binary tree with brute force approach.

    • For binary search tree, traverse from root to both nodes and store the path. Then compare paths to find LCA.

    • For binary tree, traverse from root to both nodes and store the path. Then compare paths to find LCA.

    • Brute force approach involves checking each node's descendants to see if they contain both nodes.

    • ...

  • Answered by AI
  • Q13. Program to print all ancestors of a node in a binary tree
  • Ans. 

    Program to print all ancestors of a node in a binary tree

    • Create a recursive function to traverse the binary tree

    • Check if the current node is the target node

    • If yes, print all the nodes in the call stack

    • If not, recursively call the function for left and right subtrees

  • Answered by AI

Interview Preparation Tips

Skills:
College Name: NA

Skills evaluated in this interview

I was interviewed before Sep 2020.

Round 1 - Coding Test 

(2 Questions)

Round duration - 180 minutes
Round difficulty - Medium

The online test consisted of 2 coding questions, 30 aptitude MCQs, 30 behavioral MCQs and 10 code snippets to debug. The coding questions were of medium level, aptitude MCQs were easy and the code snippets to debug was also of easy level. Each section had a time constraint.

  • Q1. 

    Merge Two Sorted Linked Lists Problem Statement

    You are provided with two sorted linked lists. Your task is to merge them into a single sorted linked list and return the head of the combined linked list.

    ...
  • Ans. 

    Merge two sorted linked lists into a single sorted linked list without using additional space beyond constant space complexity.

    • Create a dummy node to start the merged list

    • Iterate through both linked lists and compare nodes to merge them in sorted order

    • Update the next pointers accordingly

    • Handle cases where one list is empty or both lists are empty

    • Return the head of the merged linked list

  • Answered by AI
  • Q2. 

    Minimum Path Sum Problem Statement

    Consider a 2-dimensional grid 'GRID' with 'N' rows and 'M' columns in Ninjaland. Each cell in the grid has an associated cost. The goal is to determine the minimum path ...

  • Ans. 

    The Minimum Path Sum Problem involves finding the minimum sum of costs along a path from the top-left to the bottom-right of a grid.

    • Use dynamic programming to calculate the minimum path sum by considering the costs of moving down or right at each cell.

    • Initialize a 2D array to store the minimum path sum values for each cell in the grid.

    • Iterate through the grid to calculate the minimum path sum for each cell based on the...

  • Answered by AI
Round 2 - Video Call 

(4 Questions)

Round duration - 60 minutes
Round difficulty - Medium

My interview was at 9:00 am. The interview was conducted on Amazon Chime and my webcam was on. The interviewer also asked me to write the code on a document which can be edited by both me and the interviewer. The difficulty of the questions was of medium level. I was asked 3 coding questions along with 2 questions related to OOPS at the end. The interview ended with the discussion of one of my projects. The interviewer was good and also gave me hints wherever required.

  • Q1. 

    Palindrome Partitioning Problem Statement

    You are given a string S. Your task is to partition S such that every substring of the partition is a palindrome. Your objective is to return all possible palindr...

  • Ans. 

    Given a string, partition it into palindromes and return all possible configurations.

    • Use backtracking to generate all possible palindrome partitions

    • Check if each substring is a palindrome before adding it to the partition

    • Return all valid partitions as an array of strings

  • Answered by AI
  • Q2. 

    Longest Increasing Subsequence Problem Statement

    Given an array of integers with 'N' elements, determine the length of the longest subsequence where each element is greater than the previous element. This...

  • Ans. 

    Find the length of the longest strictly increasing subsequence in an array of integers.

    • Use dynamic programming to solve this problem efficiently.

    • Initialize an array to store the length of the longest increasing subsequence ending at each index.

    • Iterate through the array and update the length of the longest increasing subsequence for each element.

    • Return the maximum value in the array as the result.

  • Answered by AI
  • Q3. 

    Find Missing Number In String Problem Statement

    You have a sequence of consecutive nonnegative integers. By appending all integers end-to-end, you formed a string S without any separators. During this pro...

  • Ans. 

    Find the missing number in a string of consecutive nonnegative integers.

    • Iterate through the string and check for missing numbers by comparing adjacent integers

    • If a missing number is found, return it as the output

    • Handle cases where there are multiple missing numbers or the string is invalid by returning -1

  • Answered by AI
  • Q4. What are the ACID properties in DBMS?
  • Ans. 

    ACID properties in DBMS ensure data integrity and consistency.

    • Atomicity: All operations in a transaction are treated as a single unit of work, either all succeed or all fail.

    • Consistency: Database remains in a consistent state before and after the transaction.

    • Isolation: Transactions are isolated from each other until they are completed.

    • Durability: Once a transaction is committed, the changes made by it are permanent and...

  • Answered by AI

Interview Preparation Tips

Professional and academic backgroundI completed Computer Science Engineering from Punjab Engineering College(Deemed To be University). Eligibility criteriaCandidate must be femaleAmazon interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, Graphs, Dynamic Programming, OOPS, Operating System, Database Management, C++,Computer Networks.Time required to prepare for the interview - 3 monthsInterview preparation tips for other job seekers

Tip 1 : You must have a grip over Data Structures and algorithms. Your concepts must be crystal clear. Pick one coding platform and try to practice at least 7-10 coding questions everyday. I completed around 200+ questions on Leetcode, 200+ questions on Geek For Geeks and around 30-40 questions on InterviewBit. 
Tip 2 : After attempting any coding problem, analyze its time and space complexity. See, if you can further optimize your solution. You can always check the editorials and compare your solution with it.
Tip 3 : Apart from coding questions keep studying concepts of Operating Systems, databases and object oriented programming. You can always refer to Geeks For Geeks articles for it. Also, Coding Ninja's Data Structures and algorithms course in C++ helped me a lot in improving my OOPS concepts specifically.

Application resume tips for other job seekers

Tip 1 : You do not need to have a long list of projects on your resume. One good project with proper knowledge of it will do good. Similarly, do not list down several number of skills. Few skills but roper knowledge of them are enough.
Tip 2 : Do not fake anything on your resume. The interviewer gets to know about it by asking questions. If you aren't able to answer, it leaves a negative impact.

Final outcome of the interviewSelected

Skills evaluated in this interview

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Alibaba Group Interview FAQs

How many rounds are there in Alibaba Group interview?
Alibaba Group interview process usually has 1-2 rounds. The most common rounds in the Alibaba Group interview process are One-on-one Round, Coding Test and HR.
How to prepare for Alibaba Group interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Alibaba Group. The most common topics and skills that interviewers at Alibaba Group expect are Channel Development, B2B Sales, Communication Skills, Network Expansion and PDF.
What are the top questions asked in Alibaba Group interview?

Some of the top questions asked at the Alibaba Group interview -

  1. What's the diff bettween spark and hadoop mapred...read more
  2. weakness and strongness, bq questi...read more
  3. logistic regression questions, svm, ...read more

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Alibaba Group Interview Process

based on 9 interviews

Interview experience

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